6215. APPENDIX15.1. AES Audio and GPIO PinoutFigure 78 AES audio and GPIO Pinout15.2. GPIO Power DetailsGPIO Input Details-------------------Vin High min level is 3.5 VoltsVin Low max level is 1.5 VoltsIin min -20 uAIin max +20 uA(Essentially no current flows; this is a voltage sensing device)The GPI inputs have a 5.62K Ohm resistor pull-up to an isolated 5 Volts. Shorting the pins wouldsend an input high (“dry contact”)GPIO Output Details--------------------Outputs use a solid state relayMax voltage across relay contacts GPO_nA and GPO_nB = 200 VoltsRelay ON-resistance: Min = 6 / Typ = 10 / Max = 15 ohmsRelay Current limit: Min = 300 / Typ = 360 / Max = 460 mARelay output power dissipation (continuous) = 600 mWAES Audio GPIO
